30102131023 has 2 divisors, whose sum is σ = 30102131024. Its totient is φ = 30102131022.

The previous prime is 30102131009. The next prime is 30102131041. The reversal of 30102131023 is 32013120103.

It is a weak prime.

It is an emirp because it is prime and its reverse (32013120103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30102131023 is a prime.

It is a super-2 number, since 2×30102131023² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30102130988 and 30102131006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30102135023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15051065511 + 15051065512.

It is an arithmetic number, because the mean of its divisors is an integer number (15051065512).

Almost surely, 2^30102131023 is an apocalyptic number.

30102131023 is a deficient number, since it is larger than the sum of its proper divisors (1).

30102131023 is an equidigital number, since it uses as much as digits as its factorization.

30102131023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30102131023 its reverse (32013120103), we get a palindrome (62115251126).

The spelling of 30102131023 in words is "thirty billion, one hundred two million, one hundred thirty-one thousand, twenty-three".